(3JCedGJ ai HYV GdGhGeQ hGdfhGgi ai GdbQGf GdcQje hGdSfI (B: s ((3YQHi (B- (3GfLdjRi(B) / s - (3YHOGdZfi YHOGdQMef eMeOs ((3GdbGgQI (B: s (3ecJHI eOHhdi , s, 1997)
Keywords: (3GdGNdGb GdGSdGejIs; (3GdGOGH GdGSdGejIs; (3GdTQjYI GdGSdGejIs; (3Gdabg GdGSdGeis; (3GdehGQjKs; (3GdeYGedGJ (B((3abg CSdGei(B)s